#include <WiFi.h>
#include <HTTPClient.h>

// Replace with your network credentials
const char* ssid = "Wokwi-GUEST";
const char* password = "";

// Replace with your ThingSpeak API key and channel ID
const char* apiKey = "4FYHOC44964FT48P";
const char* channelID = "2413566";

// Analog pin connected to LDR
const int ldrPin = 34;  // Change this to the actual pin you've connected the LDR to

void setup() {
  Serial.begin(115200);
  connectWiFi();
}

void loop() {
  // Read LDR value
  int ldrValue = analogRead(ldrPin);

  // Print LDR value to serial monitor
  Serial.print("LDR Value: ");
  Serial.println(ldrValue);

  // Send data to ThingSpeak
  sendDataToThingSpeak(ldrValue);

  // Wait for 15 seconds before sending the next data
  delay(15000);
}

void connectWiFi() {
  Serial.println("Connecting to WiFi");
  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting...");
  }

  Serial.println("Connected to WiFi");
}

void sendDataToThingSpeak(int value) {
  HTTPClient http;

  String url = "http://api.thingspeak.com/update?api_key=" + String(apiKey) + "&field1=" + String(value);

  Serial.println("Sending data to ThingSpeak...");
  Serial.println(url);

  if (http.begin(url)) {
    int httpResponseCode = http.GET();
    if (httpResponseCode == 200) {
      Serial.println("Data sent successfully to ThingSpeak!");
    } else {
      Serial.print("Error in sending data. HTTP Response code: ");
      Serial.println(httpResponseCode);
    }
    http.end();
  } else {
    Serial.println("Error in HTTP begin.");
  }
}